基于双峰海浪谱的风浪和涌浪分离应用研究

摘要

基于低频分谱和高频分谱叠加的思想,提出了一种混合海浪谱的表达式.并根据海域特点选取Jonswap谱作为分谱形式,给出了由实测双峰谱的特征量确定分谱参数的合理途径,并应用于东海海域实测双峰海浪谱的拟合及风浪和涌浪分离中.%A double peak frequency spectrum of sea waves can be presented as the summation of low frequency spectra and high frequency spectra represented in Jonswap's form.Parameters of the Jonswap's spectra are determined based on measured spectral characteristics.The proposed form is applied to fit and separate the measured double peak spectra in the East China Sea,and there is a good agreement between the computation and the measurement.